I don’t think that’s very true, even by the slightest. Also thats very sad if you use Docs API, instead of C++ code/comments.
UE4 docs has too much copy/paste from UDK docs, and also too much UE4.0.0 pre-alpha docs, i am not even talking about not existing docs for many areas. I really think Epics should hire professional Documentalist on fulltime basis.